Hello,

Just for reference: after making sure all config files were identical and
upgrading all machines to linuxptp 2.0, the issue is gone and i can leave
the utc_offset on its default value.
Thanks for the help !

Frank



On Tue, Feb 12, 2019 at 10:01 PM Richard Cochran <richardcoch...@gmail.com>
wrote:

> On Tue, Feb 12, 2019 at 09:09:28AM +0100, Frank Dekervel wrote:
> > I worked around the issue now by setting utc_offset to 0. that's not a
> > proper fix, so i'm still trying to find out where the UTC time comes
> from,
> > i'm going to review all configfiles now.
>
> You got me worried, and so I tried a similar setup here:
>
> - PC master clock with i210 (HW timestamping)
> - netbook slave with r8169 (SW timestamping)
>
> Turned off NTP on the netbook.
>
> On the PC:
>
>    phc2sys -a -r -r -m -q
>    ptp4l -m -q -i eth6
>
> On the netbook:
>
>    ptp4l -m -q -S -s -i eth0
>
> The initial 2.5 millisecond offset corrected within about 60 seconds
> run time.  So try these commands (without config files).  It should
> just work.
>
> Thanks,
> Richard
>
>
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